Dynamic mechanical analysis, better known as DMA, is a powerful tool for understanding the thermal and mechanical properties of polymeric materials. Using deformation as the main variable for evaluation, DMA provides information about a material’s glass transition temperature and deterioration limit.
DMA measures the modulus (stiffness) and damping (energy dissipation) of materials as they are deformed under periodic stress. It can be used to assess the effects of temperature on a material, and characterize its physical properties. While DMA testing is closely related to other forms of thermal analysis, it is sometimes preferred over other test methods because of the clarity of test results.
Dynamic mechanical analysis can be used to determine fundamental transition temperatures, such as glass transition, and how that value changes with material formulation and conditioning. The mechanical response of different materials being considered for an application can be compared over the temperature range anticipated in service. For more advanced applications, DMA can include stress-relaxation behavior and creep testing.
Element experts use Dynamic Mechanical Analysis to measure a wide range of material properties, including modulus, damping and curing, among others.
For plastics, rubbers, and other polymeric materials, which are viscoelastic and have mechanical properties that are subject to time, frequency and temperature, DMA is an effective method. Element experts use DMA to measure:
- Creep and Stress Relaxation
- Film/Tension Behavior
- Glass Transition and Softening Temperature
- Cure Behavior
Standards We Test To
American Society for Testing & Materials
ASTM D4065, ASTM D5023, ASTM D5024, ASTM D5026, ASTM D7028, ASTM E1356, ASTM E1545, ASTM E1640
Institute for Interconnecting and Packaging Electronic Circuits
Society of Automotive Engineers
Various Customer Specifications
SRM 18R-94, Sikorsky SS9152/PP101
Ready to request a quote?
Our deliverable is certainty - high quality data, test reports and certificates that you can absolutely rely on when making decisions about your materials and compliance. Engage with an expert today.
Considerations for Glass Transition Temperature
Element offers a variety of methods for determining glass transition temperature and other important polymeric characteristics
Element offers a wide range of experience in consulting, analytical testing, and industrial chemistry.
Energy Coatings Testing
We offer world-class materials expertise in polymers, elastomers, thermoplastics, composites and structural adhesives.
Local laboratories, global platform
Doing business with one of our laboratories enables our clients' access to our global platform of expertise, capacity and capabilities.